Industrial Grade Gasification

Delivering Affordable Renewable Technology

Through Gasification

Clean Energy Conversion

Tipping Fees

Transportation Costs

New Landfills

Carbon Emissions

Sludge Disposal

Clean Energy

Crop Residues

PHG Energy: Industrial Grade Gasification

Large Format Gasifier

This is NOT incineration

• Minimal cleanup required for emissions

• Clean burning gas called Producer Gas or Syngas

• Ability to retrofit current equipment

• Biochar created from the process is stable and has secondary uses

• Feedstock flexibility

Gasification- The clean, efficient conversion of biomass into combustible gas in an oxygen-starved environment

Applications

Covington Waste-To-Energy System

• Cash flow positive for the city • Over 360 tons/month diverted from landfill • Saves over 425 tons of CO2 per year • Upside potential with sale of biochar • Future sludge drying opportunity

Covington, TN WWTP: May 16, 2013

PHGE ORC Demonstration (Gleason, TN)

Producer gas provided by one PHGE small format gasifier (a total of six are installed)

WWTP Sludge Drying

Application

Create “Class A” Biosolids

Industrial Grade Gasification

The Flow of Material to Gas

Feed Hopper

Feed Auger

Gasifier

Biochar Collected

Gas Exit Pipes

What Can You “Gasify?”

• Woodchips

– Utility trimmings

– Scrap pallets/Construction

– Bark or waste wood

– Commercial waste

• Agricultural and animal waste

• Scrap tires and rubber products

• Food processing and other

manufacturing waste

• Switchgrass, miscanthus and other

purpose-grown energy crops

• Mixtures improve performance

A Positive Economic Impact Is Essential For Every Project

Reduce tipping fees

Reduce hauling costs

Provide alternative energy

Competitive with fossil fuels

Mitigate supply & price risks by using local feedstocks

PHG Energy Projects

WWW.PHGEnergy.com

Feedstock Specifications

• Consistent feedstock = consistent gas

• Moisture content is key (< 30%)

• Feedstock size: ¼” to 4”

• Ash content < 10%

• Minimum bulk density: 14lbs/ft3

• Low cost waste streams from other processes can greatly improve economics

• Feedstock “Blends” offer further flexibility

Downdraft Gasification

Evaporate moisture from the feedstock

Feedstock breaks down to gas and tars

3000 degree F oxidation layer cracks tars

Carbon reforms with steam to create CO and H2

Rotating Grate shaves biochar layer Residue box for biochar removal

Drying

Pyrolysis

Oxidation

Reduction Grate

Residue

Air

Air